Environmental Science MCQs: In this blog post, we have written important MCQs on ecosystems with answers pdf.
These Ecosystem multiple-choice questions are useful for all classes and competitive exams.
MCQs on ecosystem with answers pdf
1. A pond can be divided on the basis of penetration of light into :
Euphotic
Mesophotic
Aphotic
All the above
2. Cyclops and Cypris are being classified under the category of :
Nektons
Benthic Animals
Zooplanktons
Lotic Animal
3. Decomposers are also known as saprophytes and detrivores. Whether this statement is :
Correct
Incorrect
4. Grass → Grasshopper → Frog → Snake → Hawk
In the above-mentioned food chain, which trophic level belongs to Grasshopper and Snake?
First and Fifth
Second and Fourth
First and Fourth
Second and Fifth
5. Out of the following which one is placed in the category of decomposers :
Cyclops
Curvularia
Bettle
Mollusk
6. The amount of the living matter at any time is known as-
Pyramid of Energy
Pyramid of Number
Food Web
Standing of Biomass
7. The flow of energy in an ecosystem is always –
Linear
Circular
Square
Rectangular
8. The total number at which the radiant energy is stored by the process of photosynthesis in the green plants is known as:
GPP
NPP
GDP
POP
9. Which one is not included in the Abiotic component?
Decomposers
Physical
Inorganic
Organic
10. Who coined the term Ecosystem?
Robert Hooke
A. G. Tenslwy
John Aber
Sarah Martha
MCQs on Natural Ecosystem
1. ………. is the ship of the deserts as it can travel long distances without drinking water for several days.
Camel
Deer
Lion
Elephant
2. An area has harsh winter, with a mean annual temperature below 0oC and, the soil is not rich in humus and acidic, which are the characteristics of …..
Boreal Forest
Tropical Rain Forest
Taiga Forest
Tundra Forests
3. Deltas are triangular areas bordering the river valley towards the mouth. They are associated with the land projecting into the sea in the form of the protuberance. Whether this definition is
Correct
Incorrect
4. Grassland of South America is known as:
Steppes
Savanna
Pampas
Prairies
5. Natural ecosystem is always dependent on …………….
Solar Energy
Tidal Energy
Nuclear Energy
Biomass Energy
6. Out of the following plant species is not found in the Himalayan Region?
Dalbergia Sissoo
Pinus roxburghii
GraxinusXanthoxyloides
Acacia Leucophloea
7. River mouths, coastal ways, tidal marshes, and lagoons are examples of:
Deltas
Mangrove
Estuary
Basins
8. Study of freshwater is known as ……………
Hydrology
Geology
Limnology
Physiology
9. The region which shows maximum biodiversity, rich in new species and endemic forms is known as:
Western Ghats
Eastern Ghats
Hot Spots
Northern Ghats
10. Which type of forest is found in North America and northern Eurasia is below the Arctic Tundra?
Tidal Forests
Rain Forests
North Coniferous Forests
Alpine Forests
MCQs on Human Modified Ecosystem
1. A practice to keep fish in captive condition for a few years in floating cages in coastal lagoons and release them from captivity into water bodies is called as :
Falcony
Aquaculture
Fisheries
Angling
2. An ecosystem that may or may not be dependent on solar energy is known as :
Human Modified Ecosystem
Natural Ecosystem
Ecosystem
Artificial Ecosystem
3. Dams are used for :
Generating electricity
Reducing river silting
Supply irrigation water for agriculture
All the above
4. Eco-industry or industrial ecology is to make the industrial manufacturing process more sustainable by redesigning the industrial processes along with the pattern of natural processes. Whether this statement is
Correct
Incorrect
5. Highly simplified, species diversity, highly unstable, and susceptible to plant diseases are the main features …………… ecosystem.
Village
Urban
Agro
Laboratory Culture
6. Human modified system is highly simplified, species diversity is very low, depends on human survival, and is highly unstable. Whether this statement is
Incorrect
Correct
7. MIC stands for :
Minimum Inhibitory Concentration
Message Integrity Code
Methyl Iso Cyanate
Military-Industrial Complex
8. Main demerits of aquaculture is :
High profit
Loss of native aquatic biodiversity
Overharvesting of fisheries
Fishes are very sensitive to pesticides runoff
9. Tree planted on barren lands, village panchayat, roadsides, railway tracks, etc. is known as:
Village Ecosystem
Agro Ecosystem
Urban Ecosystem
Plantation Forest
10. Which toxic matter is released after burning plastics :
Carbon dioxide
Nitrogen
Poly chlorinated biphenyls
Particulate matter